Coupler body



FIG. 1 is a top and left side perspective of a coupler body, embodying my new design;

FIG. 2 is a left elevation view thereof;

FIG. 3 is a right elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is rear elevation view thereof; and,

FIG. 7 is front elevation view thereof.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the article and form no part of the claim. 

CLAIM I claim the ornamental design for a coupler body, as shown and described. 